{
  "manageEntity": {
    "action": "Save",
    "entityId": "2059465068",
    "entityType": "Track",
    "nonce": "0xf57c34666e2bd9f3a4f49475069a6891ee06335420a3af347f0161869309b7db",
    "signature": "0x2cca26e945b4b03fb0dc7f182fb1fbd23e39a680101574b923a4bef1eddec8572dd209207d654987c0a3608cec2a7a29963a33acd44b92ad0310b3727e7f86451b",
    "signer": "0x0fe82f565AaE260D57b8e691c61Fb05fE83B6F81",
    "userId": "614212580"
  }
}